-frank c



(No Model.) I

P. C. DUMAS.

SOCKET FOR FASTENING WIRE ROPE. v No. 356,106. Patented Jan. 18, 1887.

' QMMMQW ELI/5M W ATTORNEY imam STATES PATENT Fries.

FRANK O. DUMAS, OF NEW YORK, N. Y.

SOCKET FDR FASTENING WIRE ROPE.

SPECIFICATION forming part of Letters Patent No. 356,106, dated January 18, 1887.

Application filed Foveinber 24, 1885. Serial No. 183,909. (No model.)

To all whom it may concern:

Be it known that I, FRANK O. DUMAS, of New York city, in the county of New York and State of New York, have invented a new and useful device for fastening wire rope by means of a screwsocket to hooks, either swivel or stationary, clevises, or any other joints or fastenings of wire rope where eye-splices are now usually employed, of which the following is a specification.

This invention dispenses with the necessity of splicing-loops or eyesplices in wire ropes to join or attach them fonmechanical purposes, and the following is a clear and accurate description ofsaid invention.

My invention is illustrated by the figures on the accompanying drawings, as follows:

Figure 1 is the cylinder provided with grooves to contain the strands of the rope to be fastened. Fig. 2 is the socket (with clevis) into which the said cylinder is to be screwed.

Fig. 3 shows the hollow interior of cylinder Fig. 1. Fig. 4 shows the cylinder with the rope inserted and strands laid back in the grooves. Fig. 5 is the end of the cylinder with grooves carried over the edge, and Fig.

' 6 is the other end of the cylinderprovided with it consists of a metal cylinder (marked Fig. 1 on the accompanying drawings) having a screw-thread around its exterior and fitting into the screw-thread of the socket Fig. 2 on the drawings herewith. This cylinder Fig. 1 is provided on its outside with grooves or sluices (marked a 0 c on said drawings) running parallel with its length, in number to correspond with the number of strand-sin the wire rope to be used, as hereinafter mentioned, and said cylinder is hollow, provided with a round bore through its center from end to end, and on one end of the cylinder the grooves above mentioned are made to run over the end of the cylinder, as shown in Fig. 5, which is a sectional view of said end of the cylinder upturned. The other end of said cylinder Fig. 1 is provided with a four-sided cap, as shown on the drawings,and by sectional view thereof, (marked Fig. 6,) capable of being securely held in a wrench or vise for the purpose of screwing down. This cylinder Fig. 1 is made to screw snugly into the interior of the socket end of the clevis, Fig. 2 on the drawings, and a view of the inside of this cylinder is shown by the sectional view thereof on the drawings, (marked Fig. 3.)

The socketFig. 2, having a hollow interior provided with a screw-thread and capable of receiving the cylinder, Fig. 1, to be screwed firmly into it, may be a part of a hook, clevis, or other device which is to be attached to a wire rope, as the case may be.

My invention is then operated as follows: The wire rope which is to be attached to such hook or clevis (the latter being provided with the screw-socket, as above described) is passed through the cap end of the cylinder Fig. 1, in manner as shown in Fig. 4. on the drawings, to such a point that the rope will extend beyond the other end of the cylinder. about the length of the cylinder. The strands of therope at the end which has passed through the cylinder are then unlaidas flush as may be with the end of the cylinder, and each one of said strands is then bent over into the grooves in the cylinder edge, and each strandis laid back to fit each one into one of the corresponding grooves, (shown and marked 0 c cin Fig. 1,) in the-manner as shown by Fig. 4. The socket Fig. 2 is then screwed down over said cylin' der, and the wire strands unlaid, as described and shown in Fig. 4, from the upper end, and will thus tightly hold and confine the wire rope, which is the object of this invention.

Having thus described 'my invention and its operation, I claim as new and desire to secure by Letters Patent- The combinationof the hollow-cylinder provided with the grooves or sluices c c c and with the screw-thread around its outer surface and the socket provided with a screw-thread around its inner side, in the manner described,

with a wire rope passed through the interior 

